baber/WOPTO huggingface dataset:
Patent GB-1486057-A (GB)
Title: Hydroxyphenyl tetrazoles and their use in the extraction of metals
IPC: C22B3/36
Filed: 1975-06-09
Abstract: 1486057 Metal recovery IMPERIAL CHEMICAL INDUSTRIES Ltd 21 May 1976 [9 June 1975] 24629/75 Heading ClA [Also in Division C2] A process for extracting metal values from aqueous solutions containing their salts comprises treating the aqueous solution with a solution of a heterocyclic compound of the formula wherein X is an optionally substituted orthohydroxyphenyl group of the formula wherein R is hydrogen, halogen, alkyl or an electron-withdrawing group and R<SP>1</SP> is hydrogen or an optionally substituted hydrocarbon group attached directly or through an oxygen atom to the benzene ring; n is 1 or 2, with the proviso that the compound contains a total of at least 5 aliphatic or alicyclic carbon atoms, in a water immiscible solvent and separating the metal in the form of a complex with the heterocyclic compound in solution in the waterimmiscible solvent.
Patent GB-1246346-A (GB)
Title: Production of esters
Inventor: STANLEY ROBERT HOLROYD
IPC: C07C67/02
Filed: 1969-05-15
Abstract: 1,246,346. Esters. BRITISH TITAN Ltd. 23 April, 1970 [15 May, 1969], No. 24833/69. Heading C2C. Esters are prepared by reacting (a) a hydroxy compound with a carboxylic acid, ester or anhydride, or (b) an ester of a first alcohol and a first carboxylic acid with an ester of a second alcohol containing fewer carbon atoms than the first alcohol and a second carboxylic acid which is a higher acid than the first carboxylic acid, in the presence of, as catalyst, a titanium amine compound of the general formula wherein n=0, 1, 2 or 3 and R<SP>1</SP> and R are each alkyl, cycloalkyl, alkenyl or aralkyl groups or R<SP>1</SP> may be hydrogen. Examples describe the reaction of phthalic anhydride and 2-ethyl hexanol to give 2-ethyl hexyl phthalate, the reaction of butyl acetate and diethyl adipate to give ethyl acetate and dibutyl adipate.
Patent GB-1321359-A (GB)
Title: Photoelectrostatic copying machine
IPC: G03G15/00
Filed: 1971-04-19
Abstract: 1321359 Electrophotographic copiers ADDRESSOGRAPH MULTIGRAPH CORP 19 April 1971 [6 April 1970] 24863/71 Heading G2H A copy belt 12 comprises a photo-conductive layer 58 having a conductive backing 56, the backing 56 being earthed through a conductive path provided by a corona discharge unit 36 which is positioned adjacent an exposed portion 56A of the backing. The belt is moved past a corona discharge sensitizing station (18), Fig.1; (not shown) on exposure station (24) an electrically biased developing station (40) and an electrically biased transfer roller (52). Preferably the belt 12 comprises a polyvinyl carbazole layer 58, a copper or aluminium backing 56 and a Mylar (R.T.M.) substrate 54.
Patent GB-811674-A (GB)
Title: Improvements in electrical terminal clips for mounting on panel members
Inventor: MACKAY KENNETH CHARLES
IPC: H01R13/432
Filed: 1956-08-15
Abstract: 811,674. Holders for thermionic valves; binding-posts. ILLINOIS TOOL WORKS. Aug. 15, 1956, No. 24993/56. Class 38 (1). A number of terminal clips 22 each consisting of a socket portion 38, with an aperture 40, and a stud portion 36, and interconnected by a connecting section 24, are attached to a panel 28 by simultaneously inserting the stud portions through slots 48 and then removing the section 24 by means of a punch, inserted through an aperture 52 in the panel, so as to leave a plurality of individual terminal clips mounted on the panel and forming a valveholder or terminals for the reception of wires. The stud portions projecting through the panel are dip-soldered to a printed circuit on the underside thereof. Alternatively the clips may be mounted on the underside of the panel and connected to a printed circuit on the upper surface (Fig. 12, not shown). Fig. 14 shows another form of terminal clip wherein the stud portion 36a is reversely bent and has lateral resilient tongues 66, 68 struck therefrom and a bent-over end portion 70 whereby the clip may be snapped into the aperture 48a in the panel with the tongue 68 and the portion 70 resiliently engaging printed circuits on one or both sides of the panel. In another embodiment, Fig. 16, the stud portion 36b of each terminal clip is similar to the stud portion 36 in Fig. 1 but has a single struck-out tongue 66b which engages the printed circuit 30b and enables the clip to be snapped into the panel aperture.
Patent GB-838129-A (GB)
Title: Improvements in or relating to castors
IPC: B60B33/00
Filed: 1957-08-08
Abstract: 838,129. Castors. GODARD & CO. Ltd., C. W., and GODARD, K. C. Aug. 5, 1958 [Aug. 8, 1957], No. 25074/57. Class 52(1) A castor with a leg 1 rotatable about a vertical axis by means of a spindle 2 has a disc-like thread guard 3 moulded in one with the leg and being cast therein the axle 4 for the wheel 5 which runs on bush 6 and is held on the axle by a further thread guard 9 screw threaded to engage the axle.
Patent GB-1455872-A (GB)
Title: Cutting nozzles
IPC: C25D1/02
Filed: 1973-05-25
Abstract: 1455872 Making cutting nozzles BOC INTERNATIONAL Ltd 28 May 1974 [25 May 1973] 25111/73 Heading B3A [Also in Divisions C7 and F4] In a metal cutting nozzle having pre-heating gas passages 14 encircling a central cutting oxygen passage 8, at least part of the wall of each gas passage 14 consists of electrodeposited metal. In one embodiment, the nozzle is made by electroplating copper 10 on the outer surface of a former 2 having a central passage 8, which forms the cutting oxygen passage 8 in the finished nozzle, and on the exposed surfaces of cores 6 positioned in grooves in the outer surface of the former 2. The passage 8 is plugged during the electroplating operation to prevent deposition of copper thereon. After a sufficient thickness of copper has been formed Fig. 5, the cores 6 are removed to leave gas passages 14 and the copper deposit 10 is machined to form a right cylindrical outer surface and frusto-conical seating faces 16, 18, 20. Passages 22 are formed by drilling to communicate the gas passages 14 with the gas supply when the nozzle is seated in a holder. The end of the nozzle is swaged whilst removable members are positioned in the gas passages 8, 14 to reduce the diameter of the nozzle and alter the shape of the passages 14 (Fig. 7, not shown). In another embodiment (Fig. 8, not shown), the nozzle is made by electrodepositing copper on a core (24) adapted to form the central oxygen passage 8 and cores (26) provided with sprues (28) adapted to form the preheating gas passages 14 and communicating passages 22. The cores 24, 26 are made of wax or plastics, loaded with graphite or metal powder or provided with a surface layer of metal, and are positioned between supports (30) acting as electrical terminals. After removing the cores 24, 26 by heat the outer surface of the electrodeposited copper is finally machined to the desired shape (Fig. 7, not shown).
Patent GB-304705-A (GB)
Title: Improvements in or relating to apparatus for synchronising a moving picture film, with sound recording and reproducing machines, musical instruments and the like
IPC: G03B31/00
Filed: 1927-09-23
Abstract: 304,705. Johnson, K. A. Sept. 23, 1927. No Patent granted (Sealing fee not paid). Sound recording and reproducing apparatus associated with kine. matographs.-In the synchronous projection of a film with a sound recording or reproducing machine, musical instrument or the like, provision is made whereby the film after correction by shortening or lengthening acts automatically in its movement in the apparatus to correct the disturbed synchronism. For this purpose, notches, perforations, &c., are made the Sim, preferably just before the correction and these act on a spring-pressed pin or roller bearing on the film passing through the gate to control the drive so as to produce the necessary lag or lead in one or other of the machines, The invention is shown applied to the synchronizing device described in Specification 174,762 wherein a shaft driven as by pulley 3 from the. projector drives a governor on spmdia A and a pinion 1 adapted for lateral movement along a spindle 2 carrying a. fixed retchet wheel 5 connected by a spring 4 with the wheel 1 and controlled intermittently by a pawl 6 and electromagnet 7 from the sound recording or reproducing machine, so that variations in speed between the machines effects lateral displacement of the wheel 1 whose sliding bearing acts through a pivoted lever to vary a brake pad 8 in relation to the governor disc 9, the movement being indicated by a finger 27 moving over a scale 28 and provision being made for hand adjustment of the lever pivot by a knob 11. According to the invention, the notches &c. provided on the film to effect the necessary correction permit a roll 16, Fig. 3, bearing on the edge of the film as it passes through the gate 15 to move so that its spring- pressed carrying lever 17 closes contacts 18, 19 in a circuit whereby, according to one arrangement. electromagnets 14, Fig. 1, actuate a pawl 13 to release a ratchet wheel so that the spindle 12 can be rotated by a spring to adjust the brake lever. According to another arrangement, the closure of the circuit causes electromagnets 38, Fig. 5, to actuate the pawl 34 so as to move the slide carrying the synchronizing mechanism described in Specification 174,762 and so adjust the brake lever. The film gate has a hinged cover 21, Fig. 2, which when opened presses back the arm 17 carrying the roll 16, and may then itself be held fully open by a spring which also serves for holding it in closed position. The film gate may be curved so that the film is stiffened against collapse by the pressure of the roll 16.
Patent GB-1104632-A (GB)
Title: Dye receptive shaped articles
IPC: C08L23/02
Filed: 1965-06-15
Abstract: A dye receptive article comprises a shaped mixture of a major proportion of a high molecular weight hydrocarbon polymer and a minor proportion of an amine polymer, which article has been treated with a Lewis acid capable of diffusing into the shaped mixture and reacting at least partially with the amine polymer, said Lewis acid being (a) a mineral acid; or (b) an anhydrous acid gas of a mineral acid defined in (a); or (c) a halide of a non-metallic element; or (d) a solution of an organo-carboxylic acid in a non-polar solvent, or an aqueous solution of an organo-carboxylic acid at a weight concentration of at least 20%, or an organo carboxylic acid in the liquid or molten state; or (e) an acid halide or organo-sulphonyl halide of an acid defined in (d) or (f) an activated alkyl halide containing a conjugated group which enhances the activity of the halogen atom; or (g) a phenol or an ester of an inorganic polybasic acid.  The hydrocarbon polymer is a poly (1-alkene) preferably polypropylene.  Amine polymers exemplified are the reaction product of 3-(dimethylamino) propylamine with a styrenemaleic anhydride copolymer, the condensation product of dodecylamine, piperazine and epichlorohydrin, and an alkylated poly (ethyleneimine) obtained by reacting poly (ethyleneimine) with dodecylbenzyl chloride. The article may be a fibre, fabric or filament and may be dyed.ALSO:A dye receptive article comprises a shaped mixture of a major proportion of a high molecular weight hydrocarbon polymer e.g. polypropylene and a minor proportion of an amine polymer, which article has been treated with a lewis acid capable of diffusing into the shaped mixture and reacting at least partially with the amine polymer (see Div. C3). Examples relate to dyeing the articles in the form of fibres, fabrics or filaments with Capracyl Orange R and Alizcoin Sky Blue.
Patent GB-302976-A (GB)
Title: Improvements in or relating to transformers for high frequency electric circuits
IPC: H01F19/00
Filed: 1927-09-23
Abstract: 302,976. Radio Instruments, Ltd., and Hale, G. W. Sept. 23, 1927. Transformers. -A high-frequency intervalve transformer has two windings 12, 15 on a former 11, each composed of interposed groups and the winding 15 wound in the opposite direction to the winding 12, the ends 13, 14 being connected together. The winding 12 is a primary and the winding 15 is a stabilizing winding, and these two are brought out to three pins 22, 23. A secondary winding 20 is wound on a surrounding former 17 and is connected to pins 21. A reaction winding 25 is connected to pins 24, and is either associated with a continuation of the winding 20 as shown in Fig. 4, or is placed on the upper end of the former 11. A small variable condenser 27 may be integrally associated with the structure.
Patent GB-1494409-A (GB)
Title: Reforming pipe clamp
IPC: B21D3/14
Filed: 1975-06-12
Abstract: 1494409 Welding by fusion; restoring to form T C DEARMAN 12 June 1975 [7 Oct 1974] 25202/75 Headings B3R and B3Q A truing clamp for axially aligning two pipe 4, 19 comprises a rigid annulus, e.g. in halves 2, 3, provided to encircle the first pipe 4 and carrying a plurality of circumferentially spaced, radially adjustable force applying members 13, 15 for truing the pipe 4 to the shape of the pipe 19 and a plurality of adjustable support members 18 for supporting and moving the second pipe 19 into axial alignment with the first pipe 4 to enable welding together of the pipes, wherein the members 18 are movable from a support position to a non-supporting position (full and dotted lines respectively, Fig. 3). The halves 2, 3 comprise pairs of semicircular metal bands 5, 7 connected by web (6, 8, Figs. 4, 5, not shown) which carry the force applying members 13, 15. As shown, the members 2, 3 are attached to each other by a pivot pin 10 and a locking pin 12. Pairs of plates 21, 22 welded to respective pairs of bands 5, 7 receive the support members 18 which comprise bodies 20 pivoted to the plates by pivot pins 23 and retainable in their support positions by locking pins 27. Adjustable screws 25 on the bodies 20 axially align the pipe 19 to the pipe 4. In alternative embodiments each support member may be axially slidable in the plates 21, 22 (Fig. 9, not shown), the plates 21, 22 of each member 18 may have a second adjustable screw to support the first pipe 4 (Fig. 6, not shown) and each support plate may be circumferentially slidable on associated bands 5, 7 (Figs. 7, 8, not shown). Each of the adjustable members 25, 13, 15 terminates in a swivel foot (e.g. 26) for contacting the pipe surface. Following an initial weld to securely attach the two pipes together the support members 18 are moved out of contact with the pipe 19 and the welding process is finished.
Patent GB-847741-A (GB)
Title: Improvements relating to top roller holders for textile drafting arrangements
IPC: D01H5/56
Filed: 1958-08-06
Abstract: 847,741. Textile drafting apparatus. RIETER & CIE A. G., J. J. Aug. 6, 1958 [Aug. 26, 1957], No. 25212/58. Class 120(2). To retain the top rollers when the arm is lifted, a pivoted lever 5 partly surrounding the shaft is urged to engage the shaft by resilient means 11 provided between the lever and a roller-loading-member 2 to which it is pivoted. The lever is disposed in a slot in the member 2 (which is shown cut away) and in the working position of the rollers abuts the upper part of the slot: when the arm is lifted, the initial descent of the rollers allows the lever to pivot so that its arm 12 prevents any further fall. The rollers may be freed by manipulating the arm 12.
Patent GB-1092492-A (GB)
Title: Process for the preparation of tertiary phosphines
IPC: C07F9/50
Filed: 1966-06-07
Abstract: Tertiary phosphines are prepared by reacting a long chain phosphine RPH2, wherein R is an aliphatic radical containing 10-18 carbon atoms, with an alkylating agent R1X, wherein R1 is an alkyl radical containing 1-4 carbon atoms and X is Cl, Br or I, in an alcohol R1OH within a temperature range of 30 DEG -130 DEG  C. for 10 minutes to 100 hours, the reaction being carried out in the presence of 1-4 equivalents of HCl when X is Cl, the time and temperature being sufficient to form the tri-aliphatic phosphonium salt but insufficient to cause more than minimal dissociation of the tri-aliphatic phosphonium salt and then treating the reaction mixture with a strong base (preferably NaOH), all steps being carried out in an inert atmosphere. When using alkylating agents that are gases at room temperature the reaction is suitably carried out in a closed system at a pressure of 1 atm. to 2000 p.s.i.  When methyl chloride is the alkylating agent from 2 to 4 mole per cent of iodide ion, e.g. from NaI, based on the phosphine reactant, may be added as catalyst. The corresponding phosphine oxides may be produced by treating the tertiary phosphines with 3% H2O2 solution.  The primary phosphine starting materials may be prepared by reacting a long chain aliphatic halide with triethyl phosphite at 140 DEG -180 DEG  C. and refluxing the product with lithium aliminium hydride in ether.
Patent GB-239390-A (GB)
Title: Improved means for attaching pipes to walls
IPC: F16L3/10
Filed: 1924-10-24
Abstract: 239,390. Barker, A. H., and Lambert, A. T. Oct. 24, 1924. Supporting pipes. - A device for attaching pipes and other fittings to walls and like structures of the kind comprising a clip for holding the pipe &c. and a shank secured at one end thereto and having its other end threaded in the manner of a coach screw or wood screw so that it may be screwed into a wood &c. plug inserted in a hole in a wall has the clip i secured removably to the shank b, and has a squared portion f for engagement with a spanner, between which and the clip is a smooth portion h.
Patent GB-671970-A (GB)
Title: Improvements in dyeing machines for dyeing fabrics in rope form
IPC: D06B3/26
Filed: 1949-10-04
Abstract: <PICT:0671970/IV (c)/1> A dyeing machine in which the fabric to be dyed is twisted into an endless rope, comprises a winch D for feeding the ropes of fabric to the dye bath B which is circular in cross-section, a secondary winch E which is introduced between the primary winch and the bath and is of a flat or flattened elliptical or oval shape in cross-section and mounted so as to be rotatable about a horizontal axis passing through the point of intersection of the major and minor arcs and serving to fold or plait the ropes into the dye bath.  Specification 671,969 is referred to.
Patent GB-687659-A (GB)
Title: Improvements in or relating to agitating devices for washing machines
IPC: D06F13/00
Filed: 1950-10-19
Abstract: 687,659. Washing-machines. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd., and BARBER, D. M. Aug. 9, 1951. [Oct. 19, 1950] No. 25508/50. Class 138 (ii). In a clothes-washing machine of the kind having an oscillating agitator 1 which is free to move up and down on a central driving spindle (not shown), the agitator comprises a moulded indiarubber body having a plurality of integral peripheral projections 2 and an internal cavity 3 or cavities to provide the buoyancy necessary to maintain the agitator at or near water level when in use. The cavity 3 may be of annular form and sealed by a rubber annulus 4 vulcanised in position in two annular recesses 5. The projections 2 may taper in thickness towards their outer and lower edges, and the upper edge is inclined downwards slightly.
Patent GB-708455-A (GB)
Title: Improvements relating to internal combustion engines and sealing means between the cylinder blocks and cylinder heads thereof
IPC: F16J15/12
Filed: 1951-11-02
Abstract: 708,455. Cylinders; cooling cylinders. GENERAL MOTORS CORPORATION. Nov. 2. 1951 [Nov. 17, 1950], No. 25629/51. Class 7(2) Registering ports are provided respectively in cylinder head and cylinder block assemblies, a plurality of interposed gaskets are located around the ports, and one of the assemblies has spacer members. near the sides thereof to uniformly distribute compressive forces applied to the gaskets. Figs. 1 to 3 show a compression ignition engine having a cylinder head 10 and cylinder block 12. Instead of the usual gasket separate circular gaskets 22 preferably of soft copper are arranged around each cylinder bore and circular sealing gaskets preferably rubber rings of circular section 28, 30, 36, 38 are arranged around the oil inlet and outlet ports and water and push rod ports. Spacer members 46 are located between the head and block and when the head bolts are tightened the head is flexed and the compressive forces applied to the gaskets are uniformly distributed. Portions of the gaskets 22 are forced into grooves 26. Between the head and the block is a spacer plate 44 having openings therein which contain and locate the various gaskets. The spacer members are preferably at the ends of the plate 44 and can be welded to the top thereof adjacent the end bolts. The copper gaskets 22 preferably extend from .003 ins. to .006 ins. higher than the spacer members before the bolts are tightened up. The head and spacer plate do not actually touch the clearance being preferably of the order of .025 ins. In a modification a single spacer member at each end of the head may extend substantially the full width of the plate 44. Separate laterally spaced pads can be fitted at positions most advantageous to produce and desired transverse flexing. As an alternative to the spacer plate 44, recesses can be formed in the cylinder block to locate the gaskets. Fig. 7 is an example of this. Recesses 52 are formed in the block to locate the cylinder gaskets 22. Similarly push rod water and oil gaskets may be located by recesses in the block. The spacer pads may be welded to or machined from the block.
Patent GB-522675-A (GB)
Title: Puzzle device
IPC: A63F3/04
Filed: 1939-09-14
Abstract: 522,675. Puzzles. WALLIS, P., and. VASE PRESS, Ltd. Sept. 14, 1939, No. 25824. [Class 132 (iii)] A puzzle device comprises strips 1a - 1f, 2a 2f, bearing fragments of one or more representations and adapted to be interlaced to compose a representation, and a holder 6 for the strips in the form of a frame provided with slits 7 in each of its sides for receiving the strips inserted therein in interlaced arrangement. An extension 3 of the frame may be cut to form or define the strips, as shown. In a modification, Fig. 4 (not shown) the frame has its sides folded over to form a double thickness, fastened at the corners, said slits being provided along the .folds, the slits on two sides of the frame being continuous along said sides. A threading device, Fig. 5 (not shown), may be used to facilitate the interlacing of the strips. In a further modification, Fig. 1 (not shown), the strips one way of the interlaced arrangement are fixed and formed by parallel slits. The representations on the strips may be printed in luminous ink.
Patent GB-815043-A (GB)
Title: Improvements in remote boiler level indicators
Inventor: MANNING FREDERICK ARTHUR
IPC: G01F23/02
Filed: 1957-08-15
Abstract: 815,043. Liquid level indicators. GORDON & CO. Ltd., J. Aug. 15, 1957, No. 25830/57. Class 37. [Also in Group XXXVIII] A liquid level indicator for a steam boiler comprises a U-tube with its legs joined respectively to the steam and water spaces of the boiler and a metallic tube connected in parallel with the first leg, said tube having sealed therein a glass or hard plastic sleeve containing a metal rod forming an electrode of a capacitance in a bridge circuit; the capacitance is changed by movement of a non-conducting water-immiscible liquid in the lower part of the U-tube, this movement being caused by a change in the water level in the second leg of the U-tube, since the first leg is filled with condensate to a definite level. In Fig. 3 the sight glass 8 provides a visual indication of the level of the indicating liquid in the first leg of the tube and this liquid also stands at the same level in the metallic tube 9. The glass sleeve 18 is mounted within the tube by packing rings 19, 20 and sealed from the atmosphere by the plug 23. A metal rod electrode 24 fits closely in the sleeve and is fastened by an insulator 25 which also seals it from the atmosphere. A suitable water-immiscible liquid is a mixture of perchlorethylene and either ethylene bromide or trichlorethylene.